openSUSE Security Update: Security update for mbedtls
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Announcement ID:    openSUSE-SU-2017:0792-1
Rating:             important
References:         #1029017 
Cross-References:   CVE-2017-2784
Affected Products:
                    SUSE Package Hub for SUSE Linux Enterprise 12
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   An update that fixes one vulnerability is now available.

Description:

   This update to mbedtls 1.3.19 fixes security issues and bugs.

   The following vulnerability was fixed:

   CVE-2017-2784: A remote user could have used a specially crafted
   certificate to cause mbedtls to free a buffer allocated on the stack when
   verifying the validity
                  of public key with a secp224k1 curve, which could have
   allowed remote code execution on some platforms (boo#1029017)

   The following non-security changes are included:

   - Add checks to prevent signature forgeries for very large messages while
     using RSA through the PK module in 64-bit systems.
   - Fixed potential livelock during the parsing of a CRL in PEM format


Patch Instructions:

   To install this openSUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Package Hub for SUSE Linux Enterprise 12:

      zypper in -t patch openSUSE-2017-372=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Package Hub for SUSE Linux Enterprise 12 (aarch64 ppc64le s390x x86_64):

      libmbedtls9-1.3.19-5.1
      mbedtls-devel-1.3.19-5.1

   - SUSE Package Hub for SUSE Linux Enterprise 12 (aarch64 x86_64):

      libmbedtls9-debuginfo-1.3.19-5.1
      mbedtls-debugsource-1.3.19-5.1


References:

   https://www.suse.com/security/cve/CVE-2017-2784.html
   https://bugzilla.suse.com/1029017